Watchmaker s



A. LBPRE.

WATGHMAKERS APPLIANCE.

APPLICATION FILED Mus, 1910.

Patented Apr. 18,. 1911.

WITNESSES,

UNITED STATES PATENT OFFICE.

ARCANGELO Lnr'ius, or rrrrsnune, PENNSYLVANIA.

WATCHMAKERS APPLIANCE.

' a support for a watch movement to be used with a. stethoscope tube or other suitable sound transmitting device for enabling a watch maker to accurately observe the sounds emitted by the movement when working thereon. Ordinarily the movement rests one bench. and many of the sounds are quite indistinct, making it necessary to frequently raise the movement to the ear to test the same. And this is especially true when the work is being done where there is more or less noise. lVith the invention hereiin proposed the work may proceed with the movement directly connected to the cars of the workman, thus enabling him to instantly detectirregularities, and to readily ascertain when they have been overcome.

. In the accompanying drawing, Figure 1 is a view in top planfor the device with the watch movement in position thereon, and Fig. 2 is a side view. "Big. 3 is a view similar to Fig. 1 with the watch movement removed. Fig. 4c is at-sectional plan on line 44 of Fig. 2.

Referring to the drawings, the base of the watchmovement support consists of the vertically separated plates 2 and 3, which are connected together by the spacing posts 4.

Rotat-ablecentrally in these plates and projecting through the upper plate 3 is spindle 5, and coiled around this spindle between the pliites is spring 6, which is inclosed bybarre Secured to the upper extremity of spindle is the wheel-like head 8 which is connected by links 9 to horizontally swinging arms 10.

Specification of Letters Patent.

Application filed May 3, 1911).

One of these arms is secured to spindle 11' which is rotatably mounted in plates 2 and 3, while the other of said arms are pivoted to plate 3 as indicated at 1.2. forms the pivot or turning center of finger piece 13 projecting from the space between plates 2 and 3, the same being adjacent the rigidly held finger piece 13. Arms 9 are provided with additional openings. 9'. for pivots 9 for increasing the spread of the arms when desired.

Projecting upwardly from the free ends of Spindle 11 Patented Apr. 18, 1911.

Serial No. 558,069.

arms 10 are posts 14., which are preferably notched on their inner face at 14: to embrace the periphery of the watch movement 15, as in Figs. 1 and The tendency of spring 6 to hold the posts in contracted position, as

in Fig. 3, but pressure on the movable finger piece operates to spread the posts to admit the movement, the tension of the springdrawn posts serving to securely clamp the movement when the finger piece is released.-

One of posts 14 is projected higher than the others, as indicated at 16. and connected thereto is a sound receiving end oiithe stethoscope tube. In the present embodiment, this connection is effected by means of a flat spring 17 pivoted at .17 to -the post exten sion 16, with the free end of the spring secured to the metallic sound-transmitting pin 18 to which the stethoscope tube 19 is secured. as shown. The normal shape of spring 17 is such that it holds pin 18 lower than the top plane of the watch movement when the latter is in place in the support, so that when the spring bent upwardly and turned at 17 to engage the pin with the watch movementthe engagement is maintuined under an appreciable tension. While the pin 18 may be thus held against any portion of the movement, the best results is secured when in contact with bridge 15', as in. Fig. 1. The usual two-branch form of tube isshown, each branch provided with an ear piece 20. Much of the work ordinarily done on the watch movement, particularly when repairing the same, may be accomplished with the movement mounted on the support and with the stethoscope tube in use, time transmitting the sounds and enabling the watch maker to instantly detect the various sounds indicating regularity or irregularity, as the case may be, as the work proceeds.

The device is of very special advantage bination of .a base, upwardly extending movement-engaging devices movable relatively to each other to vary the area of the space therebetween, a spring opposing outward movement of the devlces, means for moving the devices outwardly, a stethoscope tube, and means for holding the latter in op-' erative relation with the supported watch movement.

3. In a watchmakers appliance, the con1- bination of a Watch movement support, said support consisting of a base, arms pivoted to the base, movement-clamping uprights secured to the arms, a rotatable member, a

spring for. turning said member in one direction and opposing rotation thereof in the opposite (llIECtlOIL links connecting said member and the pivoted arms, neans for turning said member in opposition to the sprin a stethoscope tube, and means hold- 7 ing t e tube in sound-trans1nitting relation withthe supported watehmovement.

4. In a watchmakers tool, a watch movement support consisting of a base, (16"i098 movably mounted on the base for engaging the watch movement, a spring for opposing movement in one direction of said devices, two finger pieces secured to the baseone fixed thereto and the other movable With the latter operativelj connected to said morement-holdin devices, a stethoscope tube, and means orholding the latter in sou11dtransmitting relation with the Watch'movement.

5. In a watchmakers tool, the combination of a Watch movement sup ort, said support consisting of two rigi dly connected base-plates spaced apart, a revoluble spindle,

a spring between the base-plates and se-. cured to the spindle for opposing rotation j thereon-the spindle projecting through the uppermost plate, a head secured to the projecting end of the spindle. arms pivotally secured to the upper most plate, watch-movement engaging posts carried by the arms,

links connecting said arms with the spindlecarried head, means for moving said arms in opposition to the spring, a stethoscope tube, and means for holding the latter in operative relation with the supported watch movement.

In testimony whereof I aflix my signature in presence 0t two witnesses.

ARCANGELO LEPRE.

W'itnesses:

J. M. Nnsnrr, F. E. Gianann. 

